Tag: DNS

The global DNS infrastructure provides the critical function of mapping seeming random sets of numbers in IP addresses (like 1.1.1.1) to a name that an Internet consumer may recognize (like www.myfavoritestore.com). To scale to a global level, the DNS system was designed as a multi-level reference network that would allow any user on the Internet to query a set of servers that will iteratively find where a specific domain is owned and get the name to IP address mapping from that location. To accomplish this, it is made up of root servers controlling top level domains such as .com, .gov, and .org, Global Top Level Domains (TLDs) controlling regional domains such as .br, .fr and .uk, authoritative servers controlling specific domains such as myfavoritestore.com and a very large group of recursive resolvers that end user systems connect to. A query from a user for a domain name would be sent to a recursive resolver and that resolver would work with the root, GTLD and varying levels of authoritative servers to track down the DNS authoritative server responsible for the domain from which it would receive a DNS reply. This is a very high level and simplified representation of the most common way that DNS is used.

It’s already been over 2 years ago since we first introduced our Active Threat Level Analysis System – ATLAS, a multiphase project that’s been evolving pretty much constantly ever since. The first phase of ATLAS focused on capturing data via a globally scoped network of […]

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Asert

Arbor’s Security Engineering & Response Team (ASERT) delivers world-class network security research and analysis for the benefit of today’s enterprise and network operators. ASERT engineers and researchers are part of an elite group of institutions that are referred to as ‘super remediators’ and represent the best in information security. ASERT has both visibility and remediation capabilities at nearly every tier one operator and a majority of service provider networks globally.

ASERT shares operationally viable intelligence with hundreds of international Computer Emergency Response Teams (CERTs) and with thousands of network operators via in-band security content feeds. ASERT also operates the world’s largest distributed honeynet, actively monitoring Internet threats around the clock and around the globe.

Arbor Networks has collaborated with Jigsaw (formerly Google Ideas) to create a data visualization that shows how Distributed Denial of Service (DDoS) attacks have become a global problem. The data is updated daily from Arbor’s global network of sensors and can be viewed at www.digitalattackmap.com